Great replies. I picked up the spool as it is required in a class for shallow deco, or at least the instructor wants me to use it. In my few years of diving I've always just freely maintained my stops without a line.
I suppose as I'm sitting here looking at this thing I guess I'm having a little buyers remorse, not that it was expensive, though I did buy the stainless steel one. I have a reel, but it's too big and would be more suited for dragging a flag, something we don't do where I dive. I'll practice with it, but I've notice so many carry a spool and some reels are pretty small and it would seem a reel would be more user friendly than a spool. Though the jamming issue does make sense. Of course I see myself dropping this thing and letting out 80 feet.